.zhubei{
    background-image: url("./images/zhucebeijing.jpg");
    background-size: 100% 100%;
    width: 100%;
    height: 720px;
}
.zhongjian{
    position: absolute;
    opacity: 0.8;
    top:110px;
    left: 500px;
    width: 500px;
    height: 450px;
    background-color: olive;
    border-radius: 25px;
}
.zi1{
    position: absolute;
    left: 200px;
    top: 20px;
    font-size: 50px;
    color: black;
}
.shuru1{
    position: absolute;
    left: 110px;
    top: 150px;
}
input{
    margin-top: 30px;
    width: 280px;
    height: 30px;
    border-radius: 10px;
    font-size: 16px;
}
button{
    position: absolute;
    margin-top: 85px;
    left: 60px;
    width: 150px;
    height: 35px;
    border-radius: 10px;
}
